Spectrex SafEye 300 Series, User Manual, Page: 63 / 80

TM794200 Rev Ad, March 2019 63
8 Troubleshooting
Problem Cause Solution
LEDs are off and fault is
indicated at 0mA level Power is not supplied to
the detector Supply power to the
detector
Both LEDs are on at
yellow and fault is
indicated at 0mA level Fault 2 Bring the detector unit for
service
Both LEDs are flashing at
yellow and fault is
indicated at 0mA level Low voltage is supplied to
the detector Check the voltage level
supplied to the detector
One LED is on at yellow
and 4
– 20mA indication
level is 2mA
Dirt has accumulated on
the detector window or on
the light source window Clean the optical windows
(see
Routine Optical
Surface Cleaning on page
60)
One unit at least has been
moved or tilted Perform realignment (see
Operating Instructions on
page 55)
Power is not supplied to
the light source Supply power to the light
source
The optical open path
beam is blocked Remove the obstruction
One unit at least has been
moved or tilted Perform realignment (see
Operating Instructions on
page 55)
Electrical problem at the
light source Perform SIC in order to
measure signal intensity
Bring the light source to a
technician for service if it
is not flashing